253205653 has 2 divisors, whose sum is σ = 253205654. Its totient is φ = 253205652.

The previous prime is 253205651. The next prime is 253205669. The reversal of 253205653 is 356502352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 232928644 + 20277009 = 15262^2 + 4503^2 .

It is a cyclic number.

It is not a de Polignac number, because 253205653 - 2¹ = 253205651 is a prime.

It is a super-2 number, since 2×253205653² = 128226205422312818, which contains 22 as substring.

Together with 253205651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253205651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126602826 + 126602827.

It is an arithmetic number, because the mean of its divisors is an integer number (126602827).

Almost surely, 2^253205653 is an apocalyptic number.

It is an amenable number.

253205653 is a deficient number, since it is larger than the sum of its proper divisors (1).

253205653 is an equidigital number, since it uses as much as digits as its factorization.

253205653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 253205653 is about 15912.4370540782. The cubic root of 253205653 is about 632.6416773971.

The spelling of 253205653 in words is "two hundred fifty-three million, two hundred five thousand, six hundred fifty-three".